Use Regex To Identify Only One Contained Character?

May 9, 2012

I have a form like this

And its code :

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If TextBox1.Text.Contains(" ") Then

[Code].....

Now what code should I use when I click the button, if TextBox1 contains 2 SPACE characters, it will split into 3 parts, but if it contains only one SPACE, it'll split into 2 parts ?

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Jan 24, 2011

I have a listbox containing a collection of strings (phrases) and would like to know if one of these phrases contains a substring. For example... myListBox contains the following strings stored in the items collection:

[Code]...

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Apr 10, 2012

I'm trying to figure out how to use regex to grab the information between the double quotation marks, it will always be in this format:

Client: ("COMMAND", "DATA(if it exists)", "ARG1(if it exists)", "ARG2(if it exists)", "ARG3(if it exists)")
It will ALWAYS have the "COMMAND" string there no matter what, and when the "DATA" string

[code].....

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Jul 15, 2011

I am trying to check if a users input contains any special characters from a list, does anyone know who I would go about doing this?

I've tried the LIKE operator:

Dim sMatch As Boolean = tTitle.Text Like "[-/,.:;*?""""<>|&'[]^%£$()_+=!#]"

but doesn't seem to work, i think special characters are used for settings.

Is there a RegEx i could use for this??

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Feb 18, 2011

I can't get my sql query using regex to work in vb.net. If I write

Dim localConnection As New MySqlConnection = ConnectionNew(DBName)
Dim da as MysqlDataAdapter
Dim ds as new DataSet
Dim rows as long

[code]....

It returns null, even though there is a cell containing "ABC". When I run it directly on the database, it returns the row correctly.If I remove the [A-Z], it works fine in both circumstances.

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Oct 27, 2011

I'm creating a calculator, and I need a way to get the numbers surrounded a character I provide.

For example:
Equation: 5+5*2/7
Character: *
Result: array(5, 2)

I was wondering if regex would be able to do this and if it can.

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Jun 10, 2011

Sometimes when backing up an sql file using phpmyadmin (database stuff), for some reason it forgets to double up a single quote, resulting in an error when loading the sql file back into the database when required. A line in such an sql file looks like this;[code]As shown in the example, phpmyadmin did double up the quote in "you're" as it should, but it forgot to double up the one after "27", resulting in an error.As you can see it's like this (*value*, *'value'*, (and so on) but beforehand I can;

A) Never know how many values are in such a string
B) Can't simply split the values by "," because the value itself can hold a comma aswel.

It would be easy if every value was like this; *'value'* because then I could split by " ', ' " but that's not the case, and I also never know what location the values not enclosed in single quotes are. I also can't simply double up all single quotes in the entire string because then it will also double up the ones that are enclosing the values, resulting in an error during upload again.So yeah, what I need to get done is single out all the values with regex ($1, $2 etc.) and then string.replace single quotes in those values but *only* if said single quote is not preceeded or followed by another single quote, else it would become a tripple quote resulting in an error again.

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Jul 18, 2011

I'd like to be able to match a specific sequence of characters, starting with a particular substring and ending with a particular substring. My positive lookahead regex works if there is only one instance to match on a line, but not if there should be multiple matches on a line. I understand this is because (.+) captures up everything until the last positive lookahead expression is found. It'd be nice if it would capture everything until the first expression is found.

Here is my regex attempt:

@@FOO[(.*)(?=~~)~~(.*)(?=]@@)]@@

Sample input:

@@FOO[abc~~hi]@@ @@FOO[def~~hey]@@

Desired output: 2 matches, with 2 matching groups each (abc, hi) and (def, hey).

Actual output: 1 match with 2 groups (abc~~hi]@@ @@FOO[def, hey)

Is there a way to get the desired output?

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How do I make a regex that can detect a certain character string that is either all by its self in a line, or separated by white space.

If I have the line:

"ot"

Or the line

"sdf gdfg dv ewrsef fvdf ot sdfsd sdot"

I want to be able to detect the 'ot', except for the one that is 'sdot'

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I am using a simple regular expression (in C#) to find a whole word within a block of text.

The word may appear at the beginning, end or in the middle of a the text or sentence with in the text.

The expression I have been using word has been working fine however if the word included a special character (that has been escaped) it no longer works. The boundary is essential so that we do not pick up words such as vb.net as a match for .net.[code]...

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Given an input string like the following:I, Need, Some, Coffee, Before, I, "Fall, Asleep" I need to split this into parts like so:

I
Need
Some

[code]...

Splitting on the comma character alone is easy enough, but how can I handle the quotationmarks? Regular expressions is not on my strong side, and I have been googling for quite a bit without any good results.

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I'm trying to replace all the carriage return characters in a string obtained from a multi line text box in a Windows Form with the string ", <BR>" so that when I use the string in some HTML it displays correctly.

Function Blah(ByVal strInput As String) As String
Dim rexCR As Object
rexCR = CreateObject("VBScript.RegExp")

[code]....

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My Regex works, except if the email address entered has an underscore character (_) in it.

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Dim pattern As String = "^[-a-zAZ0-9][-.a-zA-Z0-9]*@[-.a-zA-Z0-0]+(.[-.a-zA-Z0-0+)*." & _
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He said he fixed it by adding the _ after the numeric check.

I see the A-Z0-9, but I'm not sure which is the numeric check...

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[code]...

This will output "We are on Test Number 2", as expected. how I can use a variable in the replacement string portion of the Regex.Replace when including a captured group?

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[Code]...

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[Code]...

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[Code]...

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[Code]...

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Dim occupant as String = GridView1.Rows(e.RowIndex).Cells(2).Text

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Example:
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[code].....

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[URL]

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[Code].....

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Code:
ABinary = "0110 1100 0001 1011"
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[code].....

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